This - combined with points and nights not posting - has been my biggest point of frustration with the merger.

The "download receipt" button never works on the Marriott page at all. Even if the link is there, it does not do anything (even if I disable all pop-up, ad, and javascript blockers I have) - not even present an error.

I've now taken to just asking for a paper receipt on check-out as a backup because I am not reliably emailed even if I ask for it both at check-in and check-out. I feel like I've stepped back about a decade.